- ceiling of convection
- 对流高度
Atmospheric Sciences (English-Chinese) dictionary. 2014.
Atmospheric Sciences (English-Chinese) dictionary. 2014.
convection — Conveyance of heat in liquids or gases by movement of the heated particles, as when the layer of water at the bottom of a heated pot rises or the warm air of a room ascends to the ceiling. [L. con veho, pp. vectus, to carry or bring together] * * … Medical dictionary
Underfloor heating — Heat can be provided by circulating heated water or by electric cable, mesh, or film heaters.Underfloor heating can be used with concrete and wooden floors, with all types of floor covering (e.g., stone, tile, wood, vinyl, and carpet), and at… … Wikipedia
Chilled beam — A chilled beam is a type of convection HVAC system designed to heat or cool large buildings.[1] Pipes of water are passed through a beam (a heat exchanger) suspended a short distance from the ceiling of a room.[2] As the beam chills the air… … Wikipedia
heating — I Process of raising the temperature of an enclosed space. Heat can be delivered by convection, radiation, and thermal conduction. With the exception of the ancient Romans, who developed a form of central heating, most cultures relied on direct… … Universalium
building construction — Techniques and industry involved in the assembly and erection of structures. Early humans built primarily for shelter, using simple methods. Building materials came from the land, and fabrication was dictated by the limits of the materials and… … Universalium
Mechanical fan — Household electric box fan with a propeller style blade A mechanical fan is a machine used to create flow within a fluid, typically a gas such as air. A fan consists of a rotating arrangement of vanes or blades which act on the air. Usually, it… … Wikipedia
Electric heating — is any process in which electrical energy is converted to heat. Common applications include heating of buildings, cooking, and industrial processes. An electric heater is an electrical appliance that converts electrical energy into heat. The… … Wikipedia
NEXRAD — Radar at the WSR 88D Radar Operations Center NEXRAD or Nexrad (Next Generation Radar) is a network of 159 high resolution Doppler weather radars operated by the National Weather Service, an agency of the National Oceanic and Atmospheric… … Wikipedia
Glossary of firefighting — Note: This list does not include firefighting equipment, i.e., tools and apparatus used by firefighters. Please refer to Glossary of firefighting equipment for such terms. : Note: This list is incomplete. You can help Wikipedia by… … Wikipedia
Room air distribution — Characterizing how air is introduced to, flows through, and is removed from spaces is called room air distribution. [Fundamentals volume of the ASHRAE Handbook , Atlanta, GA, USA, 2005] HVAC airflow in spaces generally can be classified by two… … Wikipedia
HVAC — may also stand for High voltage alternating current. See also: Glossary of HVAC HVAC systems use ventilation air ducts installed throughout a building that supply conditioned air to a room through rectangular or round outlet vents, called… … Wikipedia